The effect of Sr substitution on phase formation and magnetic properties of Y-type hexagonal ferrite | |
Bai, Y ; Zhou, J ; Gui, ZL ; Li, LT | |
2010-05-10 ; 2010-05-10 | |
关键词 | HEXAFERRITES CO Materials Science, Ceramics |
中文摘要 | The effect of Sr substitution in Y-type hexagonal ferrite of composition Ba2-xSrxZn1.2Co0.4Cu0.4Fe12O22 was investigated. x varied from 0 to 2.0. The samples were prepared by the solid-state reaction method. Phase formation was characterized by powder X-ray diffraction. The microstructure was observed via scanning electron microscopy and magnetic properties were measured using an impedance analyzer and vibrating sample magnetometer (VSM). Results reveal that Sr2+ cannot completely substitute for Ba2+ ions in Y-type hexagonal ferrites. The maximum solubility of Sr in the Y-type ferrite is about 1.8. With Sr above 1.8, the lattice mismatch induced by the difference in ionic radii of Ba2+ and Sr2+ ions prevents the formation of Y-type phase. While Sr content is equal or less than 1.0, the magnetic properties may be enhanced. As x > 1.0, because of the internal stress resulting from the lattice mismatch, demagnetizing field significantly degrades initial permeability. |
语种 | 英语 ; 英语 |
出版者 | AMER CERAMIC SOC ; WESTERVILLE ; 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43086-6136 USA |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/21631] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Bai, Y,Zhou, J,Gui, ZL,et al. The effect of Sr substitution on phase formation and magnetic properties of Y-type hexagonal ferrite[J],2010, 2010. |
APA | Bai, Y,Zhou, J,Gui, ZL,&Li, LT.(2010).The effect of Sr substitution on phase formation and magnetic properties of Y-type hexagonal ferrite.. |
MLA | Bai, Y,et al."The effect of Sr substitution on phase formation and magnetic properties of Y-type hexagonal ferrite".(2010). |
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